
(/VERSIONCHECK 2) 

(DEFPARAMETER |LazyStreamAggregate;CAT| 'NIL) 

(DEFPARAMETER |LazyStreamAggregate;AL| 'NIL) 

(DEFUN |LazyStreamAggregate| (#1=#:G1887)
  (LET (#2=#:G1888)
    (COND
     ((SETQ #2# (|assoc| #3=(|devaluate| #1#) |LazyStreamAggregate;AL|))
      (CDR #2#))
     (T
      (SETQ |LazyStreamAggregate;AL|
              (|cons5| (CONS #3# (SETQ #2# (|LazyStreamAggregate;| #1#)))
                       |LazyStreamAggregate;AL|))
      #2#)))) 

(DEFUN |LazyStreamAggregate;| (|t#1|)
  (PROG (#1=#:G1886)
    (RETURN
     (PROG1
         (LETT #1#
               (|sublisV| (PAIR '(|t#1|) (LIST (|devaluate| |t#1|)))
                          (COND (|LazyStreamAggregate;CAT|)
                                ('T
                                 (LETT |LazyStreamAggregate;CAT|
                                       (|Join| (|StreamAggregate| '|t#1|)
                                               (|mkCategory|
                                                '(((|remove|
                                                    ($
                                                     (|Mapping| (|Boolean|)
                                                                |t#1|)
                                                     $))
                                                   T)
                                                  ((|select|
                                                    ($
                                                     (|Mapping| (|Boolean|)
                                                                |t#1|)
                                                     $))
                                                   T)
                                                  ((|explicitEntries?|
                                                    ((|Boolean|) $))
                                                   T)
                                                  ((|explicitlyEmpty?|
                                                    ((|Boolean|) $))
                                                   T)
                                                  ((|lazy?| ((|Boolean|) $)) T)
                                                  ((|lazyEvaluate| ($ $)) T)
                                                  ((|frst| (|t#1| $)) T)
                                                  ((|rst| ($ $)) T)
                                                  ((|numberOfComputedEntries|
                                                    ((|NonNegativeInteger|) $))
                                                   T)
                                                  ((|extend| ($ $ (|Integer|)))
                                                   T)
                                                  ((|complete| ($ $)) T))
                                                NIL
                                                '((|Integer|)
                                                  (|NonNegativeInteger|)
                                                  (|Boolean|))
                                                NIL))
                                       . #2=(|LazyStreamAggregate|)))))
               . #2#)
       (SETELT #1# 0 (LIST '|LazyStreamAggregate| (|devaluate| |t#1|))))))) 
